Rebina Terra is the capital city for the harpy and hillwind people. It is located in the mountain crags under Yuno. The city is mostly made of stone and built into the mountains, with many tall spires. The resident people are very keen on trade, and use the air currents to fly their airships (or themselves) around the world to export and import goods.

There is little vegetation in the area, as it is a mostly dry desert. This suits the lifestyle of the harpies and hillwinds well enough. It is rare to see any wild animals prowling the area, since the sharp eyesight of any harpy or hillwind will direct them right to their prey.

Though the city is very much a part of the Schwartzvald Republic, the overall population has remained free of other species for thousands of years to this day. It is simply due to the fact that as a race, the harpies and hillwinds live a culture that holds flying and living with birdlike tendencies in high approval. Other races find this way of life to be a bit uncomfortable. The queen of the harpies and hillwinds, Morrígan Ravendark, is also the leader of the city.